Saw set



Feb. 5, 1924. 1,482,780-

P. A. BUGGE SAW SET Filed Jan. 5, 1922 jail? INVENTOR Pare/,4. 5a?? BY/y ATTORNEY atented Feb. 5, 1924.

TES

PATE TOFFI same A. BUGGE, or SEATTLE, WASHINGTON.

saw sET Application filed January 3, 1922 Serial No. 526,528.

ington, have invented a new and useful Saw Set; and I do hereby declarethat the following is a full, clear, and exact specification, such aswill enable others skilled in the art to which it appertains to make anduse the same.

The invention is a device for setting saw teeth which absolutely gripsand holds the saw blade while the tooth is being bent.

The object of the invention is to construct asaw set which may easily beplaced over the top of the saw and by a short turn of the handle bywhich the saw set is held, it will firmly grip the saw blade, then bypulling another handle at the top of thesaw set, the tip of the toothmay be bent to the-desired angle. I I

Another object of the invention is to construct a saw set which may bereadily locked onthe saw blade in which is' a removable"- wearing'plate,which has a beveled surface 1 at its top against which the tip of thetooth is bentsothat plates with different bevels may be furnished for"difierent sizes of saws or for difierent degrees of set.'

7 Another object of'the invention is toconstruct a saw .setwhich gripsthe-blade of the saw in which the plate against which the tip of the sawis bent may be moved up ward or downward or' set on a bevel by placing ashim behind it.

And still another object of the invention is to construct a saw setwhich will firmly grip the blade of the saw, in which is a re? movablefing er' for bearing against the tip of the tooth when setting the sawso that this finger may easily be replacedoranother one insertedin itsplace with a. different bevel. 7 V

WVith these: ends in View, the invention embodies an inverted U shapedcasing with a lever pivotally mounted in the center of the upper part ofit in which is aslot'into which the. finger which bears against the sawtooth may be placed. In one side of the lower part of thecasing is ahandle mounted in a quick screw thread so that as" it is turned in aclockwise direction, it will'move inward and jam a plate which is heldon two bolts in slots in this side of the casing up against the sawblade. The boltssupporting the plate project outside of the cats in'gandhave springs on them for drawing the plate backa-gain'sti the inside ofthe cas-- ing whenthe handle is screwedoutward; In the opposite memberof the casing is a slotted hole with V' shaped notches across theoutside of the casing and a bolt thru the slot with a -plate' ontheinside and a: ,washer on the outside with V shaped pro jections on itto fit in the notches in the casing and a guard, with a slotted hole init so that it may be set upward or downward, lockedunder the nut on'thebolt.

Other features andadva'ntages of the invention will appear from thefollowing description taken connection with the drawings, wherein-e I cI Figure 1 is a side elevation.

I Figure 2 is a cross section on the center "Figure 3is a bottom View ofFigure Figure 4 is 'an-end elevation.

- Figure 5 is a detail View of the-shim, I Inthe drawings I haveshown mysaw,

set w as itwould be constructed in Figure 1 wherein numeral isthecasingwhich is constructed in the for'm oi an inverted U with a'slot 'in thecenter of its top. One jaw 2 of the casing has a threaded hole 3;

in it in whicli is the bolt 4: which has threads 5 onits extended endand which has a handle 6 rigidly held upon it by riveting the outer end7-; It will be'seen'that as this handleis turned in a vclockwisedirection the bolt 4=-will move into the 'j aw 2 and push a-plate- 8outward to the position shown in Figur'e2. :The plate 8 has slots 9 thruit in which theb'olts 10 are held on the pins 11 which pass thru theplates and slots laterally, The bolts 10. are also 'slidably held inholes l2 in the jaw 2 and on the outer ends ofthe bolts aresprings 1 3and nuts 14 which draw the plate 8 back into the position shown inFigure 1 when the handle 6 is turned in a counter-clockwise directionand the bolt 4 withdrawn. In the lower end of the jaw 2 is-a notchl5'against which'one of the-springs l3 bear and around the upper bolt 10is .a countersunk recess 16 into. which the'spring on the upper bolt isplaced. x r

In the opposite side of 'the casing is a slotted hole 17 and in theouter surfaceof the casing are V shaped notches 18. A bolt 19 rests inthe slotted hole 17 and has a plate 20 held in a countersunk hole 21 onits in ner end. The upper end. of the plate 20 has a beveled surface 22against which the tip of the saw tooth is bent. It will be seen thatthisbevel may be made at any desired angle to fit any type'of saw andseveral plates with different bevels may be furnished. Onthe outer endof the bolt is a washer 23 which has a V shaped lug as on its inner sideto fit into the J shaped notches 18. When it is desired to, move theplate 20 upward or downward, the notches 24 may be set in either of thesimilar notches 18. Outside of this washer. is a guard 25 in which is aslotted hole 26, as shown in Figure l, which fits over the bolt 19 andis held in place by the nut 27. This guard is bent inward and upward; asshown in Figure 1 and has flanges 28 on its upper end which ride on topof the sawteeth when vthe saw set is being adjusted. In the side of thisuard is an opening 29 thru which the IlOtffilES in the side of thecasing may be seen so that the operator may easily determine the heightof the plate 20.

In the upper part of the casing is a lever 30 pivoted on a bolt 31 whichpasses thru the sides of the casing and on the upper end of this leveris a handle 32 which may have strips 33 on each side of it and thesestrips held in place by rivets 34. These strips 33 may be made of woodor any suitableimaterial so that they wil be easy to grip in coldweather. The lowerend of the leverBO is shaped as shownin Figure '2 andhas a recess 35 in its lower side in which a finger 36 may be held by apin 37, the head of which fits into a recess 38 in the side of thelever. The lower end of the lever projects downward to a point 39 whichgives a positive bearing against the back of the fin er 36. V V

11 Figure 5, I have shown a shim 4.0 which may be placed behind theplate 20 and as it has a slotted hole 41 in it, may be moved upward ordownward to give the plate 20 any desired bevel. The shim as well as theplate will be locked in place by tightening the nut 27 on the bolt 19.

It will be understood that changes may be made in the constructionwithout departing from the spirit of the invention. One of which changesmay be in the omission of the finger 39 as this may be made a part ofthe lever 30; another may be in the use of a ditferent type of springsfor holding the plate 8 back against the inside of the casing; anothermay be in the omission of the guard 25 or in the changing or" the shapeof it and still another may be in the omission of the shim 40 or in theuse of two shims instead of one, or in the use of a square shim insteadof a beveled one which would move the plate outward parallel to theframe.

rasagso The construction will be readily understood from the foregoingdescription. To use the saw set it will be set on top of a saw andplaced over a tooth so that the center of the tooth will be in line withthe center of the plate 20 and then the handle 6 will be turned in aclockwise direction until the plate 8 bears against the side of the sawblade. The lever 30 will then. be pulled towards the center of the setand the finger 36 will bear against the tip of the tooth and bend ituntil theback of the tooth bears against the bevel 22 on the plate 20 asshown in Figure 2. .The lever 30 is then moved backward the handle 6screwed out and the saw set moved to the next tooth where the sameoperation is repeated. It will be seen that the plate 20 may be movedupward or downward or may be changed to another plate with a differentbevel so that the saw set may be used on any size or type of saw.

Having thus fully described the invention what I claim is new and desireto secure by Letters Patent is:

1. A saw set of the type described embodying an inverted U shaped casingwith a longitudinal slot in the center of its top; a lever pivotallymounted on a pin in this slot with a handle on its upper end; a fingerheld by a pin in a slot in the lower end of the lever; a plate withslots in it; bolts to which the plate is held by pins, in the slots inthe plate, which bolts are slidably held in holes in the casing; springson the bolts bearing against the outside of the casing; nuts on the endscat the bolts; a larger bolt between the two bolts mounted in a threadedhole in the easing, having a handle on its outer end by which it may beturned; another plate in the opposite side of the casing'supported on abolt which passes thru a slotted hole in the casing; a washer on theouter end of the bolt with V shaped lugs on it which fit into V shapednotches in the outside of the easing; a guard on the outside of thewasher with a slotted hole in it and flanges on its upper side whichproject over the center of the slot between the two sides of the casing;and a nut on the bolt which locks the guard and plate in place.

2. A saw set of the type described comprising an inverted U shapedcasing the vertical legs of which form jaws between which a saw may beclamped; a lever pivotally mounted on the inside of the casing; aprojection on the lower end of the lever; plates on th inside or" thejaws of the casing; a bolt supporting the plate on one side so that itmay be moved upward or downward; a washer under the nut on the bolt withlugs on it to fit in notches 0n the outside of the casing; a guard alsoheld under the nut so that it may be moved upward or downward and shapedso that it will bear on top of the saw teeth; a beveled surface on theupper corner of the plate in this side of the casing; bolts pivotallyattached to the plate on the opposite side of the casing; springs suitaably mounted on the bolts which hold the plate connected to the boltsback against the surface of the jaw and a handle fixedly mounted on ascrew in a threaded hole in the i casing which is situated at the centerof the plate on this side of the casing.

3. A device of the type described embodying an inverted U shaped casingthe vertical legs of which form jaws between which a saw may be clamped;a lever pivotally mounted in the upper side of the casing; a finger onthe lower end of the lever; plates on the inside of each of the jaws ofthe casing; suitable means for supporting one of these plates andholdingit against the inner surface of the casing; a screw in a threaded holein the casing behind the center of this plate; suitable means forsupporting the plate connected to the, bolts in the opposite side of thecasing so that it may be moved upward or downward and locked in place ining an inverted U shaped casing the vertical legs of which form jawsbetween which a saw may be clamped; a lever pivotally mounted in theupper side of the casing with a projection on its lower end; plates onthe inside of each of the jaws of the casing; bolts and springs suitablyarranged to support one of these plates and hold it against the innersurface of the casing; a screw in a threaded hole in the casing behindthe center of this plate; a bolt in a slotted hole in the opposite sideof the casing for supporting the other of said plateson this side; awasher under the head of the boltwith lugs on it to fit into notches inthe side of the casing; and a guard with a slot in one side and a holein another side, which guard has flanges in the upper side which projectover the center of the space between the twoplates on the inside of thejaw of the casing.

PETER .A. BUGGE.

